*{margin:0;pading:0;}
#bj{
    width:500px;
    height:500px;
    background:red;
    margin:50px auto;
}
.b-0{
    width:100%;
    height:50px;
    background: #ff3073;
    line-height: 50px;
    text-align:center;
    font-size:20px;
}
.b ul li{
    list-style-type: none;


}
.b ul{

}
.b ul li img{
    width:100%;
    height:150px;
}
.b-1{
    width:33%;
    height:150px;
    background:blue;
    float:left;
    margin-right:0.3%;
    margin-top:30px;
    overflow:hidden;

}
.b-2{
    width:33%;
    height:150px;
    background: #0efffa;
    float:left;
    margin-right:0.3%;
    margin-top:30px;
    overflow:hidden;
}
.b-3{
    width:33%;
    height:150px;
    background: #ff4188;
    float:left;
    margin-top:30px;
    overflow:hidden;
}
.btn{
    width:20%;
    height:30px;
    margin:30px 4%;
}
.btn-0{
    background: #ff90d0;
    float:left;
}
.btn-1{
    background:blue;
    float:left;
}
.btn-2{
    background: #8f15ff;
    float:left;
}
.btn-3{
    background: #ff272d;
    float:left;
}
.btn-4{
    background: #ff272d;
    float:left;
}